ASTM D7001-20

This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: D7001 − 06 (Reapproved 2011) D7001 − 20
Standard Specification for
Geocomposites for Pavement Edge Drains and Other High-
Flow Applications
This standard is issued under the fixed designation D7001; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope
1.1 This specification covers geocomposite drainage panels used in highway, turf, and other high volume high-volume
subsurface drainage applications. These products consist of a geotextile wrapped around a polymer core. These products are a
minimum of 25 mm (1 in.) thick and are available in 150 mm (6 in.), 300 mm (12 in.), 450 mm 150-mm (6 in.), 300-mm (12 in.),
450-mm (18 in.), and 600 mm 600-mm (24 in.) widths.
1.2 The requirements of this specification are intended to provide a subsurface drainage geocomposite suitable for drainage of
surface and subsurface water, sewerage, and leachates. Products produced in accordance with this specification and intended for
pavement drainage applications shall be installed in accordance with Practice D6088.
1.3 The values as stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility
of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of
regulatory limitations prior to use.
1.5 This international standard was developed in accordance with internationally recognized principles on standardization
established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued
by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents
2.1 ASTM Standards:
D1777 Test Method for Thickness of Textile Materials
D2122 Test Method for Determining Dimensions of Thermoplastic Pipe and Fittings
D3350 Specification for Polyethylene Plastics Pipe and Fittings Materials
D4354 Practice for Sampling of Geosynthetics and Rolled Erosion Control Products (RECPs) for Testing
D4355D4355/D4355M Test Method for Deterioration of Geotextiles by Exposure to Light, Moisture and Heat in a Xenon
Arc-Type Apparatus
D4439 Terminology for Geosynthetics
D4491D4491/D4491M Test Methods for Water Permeability of Geotextiles by Permittivity
D4533D4533/D4533M Test Method for Trapezoid Tearing Strength of Geotextiles
D4632D4632/D4632M Test Method for Grab Breaking Load and Elongation of Geotextiles
D4716D4716/D4716M Test Method for Determining the (In-plane) Flow Rate per Unit Width and Hydraulic Transmissivity of
a Geosynthetic Using a Constant Head
D4751 Test Methods for Determining Apparent Opening Size of a Geotextile
D4833D4833/D4833M Test Method for Index Puncture Resistance of Geomembranes and Related Products
D6088 Practice for Installation of Geocomposite Pavement Drains
D6241 Test Method for Static Puncture Strength of Geotextiles and Geotextile-Related Products Using a 50-mm Probe
D6244 Test Method for Vertical Compression of Geocomposite Pavement Panel Drains
D6364 Test Method for Determining Short-Term Compression Behavior of Geosynthetics
This specification is under the jurisdiction of ASTM Committee D35 on Geosynthetics and is the direct responsibility of Subcommittee D35.06 on Geosynthetic
Specifications.
Current edition approved Oct. 1, 2011Jan. 1, 2020. Published November 2011January 2020. Originally approved in 2004. Last previous edition approved in 20062011 as
D7001 – 06.D7001 – 06 (2011). DOI: 10.1520/D7001-06R11.10.1520/D7001-20.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
D7001 − 20
D6707D6707/D6707M Specification for Circular-Knit Geotextile for Use in Subsurface Drainage Applications
2.2 Other Document:
AASHTO M288 Geotextile Materials
3. Terminology
3.1 Definitions:
3.1.1 For definitions of terms relating to geotextiles, refer to Terminology D4439.
3.1.2 geocomposite, n—a product composed of two or more materials, at least one of which is a geosynthetic. D4439
3.1.3 geosynthetic, n—a planar product manufactured from polymeric material used with foundation, soil, rock, earth, or any
other geotechnical engineering related material as an integral part of a man-made project, structure, or system. D4439
4. Classification
4.1 General—This specification covers geocomposite drainage products or structures intended for high flow volume subsurface
drainage applications. Two distinctly different product designs are included in this specification, a Class A product composed of
a cuspated or sheet and post core wrapped with a geotextile serving as the outer boundary and a drainage fabric, and a Class B
product composed of a series of small round pipe connected together or a flat pipe design consisting of a full circumference
full-circumference core with the geotextile acting only as a drainage fabric.
4.1.1 Fittings covered by this application are normally molded. Fittings may be fabricated from sections of the drainage core
by thermal welding.
4.1.2 Fittings intended to outlet these products often transition into pipe systems. These transition fittings are included, but the
pipe is not.
5. Ordering Information
5.1 When ordering material in accordance with this specification, the following should be specified:
5.1.1 The product size (150 mm, 300 mm, 450 mm, or 600 mm) 600 mm) (6 in., 12 in., 18 in., or 24 in.).
5.1.2 The geocomposite class (Table 2Tables 2 and 3 and Table 3).
5.1.3 The geotextile component class (Table 2).
5.1.4 Fittings required. Fittings may be required to couple sections together and to provide outlets, typically transitioning to
round pipe.
6. Materials and Manufacture
6.1 Basic Materials—These products are composites of two or more materials, typically a drainage core and a geotextile filter.
6.1.1 Core Materials—Compounds used in the manufacture of the drainage core and fittings shall be polyethylene with a
minimum cell classification of 424420C as defined and described in Specification D3350. Compounds that have a higher cell
classification in one or more properties are acceptable, except for density, which must be cell Class 4, provided the product
requirements are met.
6.1.2 Reworked Materials—Clean rework material, generated from the manufacturer’s own production, may be used by the
manufacturer provided that the core and fittings produced meet all requirements of this specification.
6.1.3 Geotextile Materials—Fibers used in the manufacture of geotextiles shall consist of long-chain synthetic polymers
composed of at least 95 percent% by weight of polyolefins or polyesters.
TABLE 1 Core Properties
Property Test Method Minimum Value
Overall Thickness Test Method D1777 $ 25 mm (1 in.) (Nomi-
(mm) nal)
Compression Strength Test Method D6364 $ 210 kPa (30 psi) (90°)
(kPa) $ 140 kPa (20 psi) (50°)
TABLE 1 Core Properties
NOTE 1—Table 1 applies to both Class A and Class B cores.
Property Test Method Minimum Value
Overall Thickness Test Method D1777 $25 mm (1 in.) (Nominal)
(mm)
Compression Strength Test Method D6364 $210 kPa (30 psi) (90°)
(kPa) $140 kPa (20 psi) (50°)
NOTE 1—Table 1 applies to both Class A and Class B cores.
Available from American Association of State Highway and Transportation Officials (AASHTO), 444 N. Capitol St., NW, Suite 249, Washington, DC 20001.
D7001 − 20
TABLE 2 Geotextile Properties
Minimum Value Minimum Value
Property Test Method Class A Class B
Geocomposite Geocomposite
Grab Strength Test Method D4632 700 N 500 N
Elongation Test Method D4632 >50 % >50 %
Seam Strength Test Method D4632 630 N 450 N
Puncture Strength Test Method D4833 250 N 180 N
Trapezoidal Tear Test Method D4533 250 N 180 N
-1 -1
Permittivity Test Methods D4491 0.5 s 0.5 s
AOS Test Method D4751 0.25 mm 0.25 mm
(max. avg. roll value) (max. avg. roll value)
Ultraviolet Test Method D4355 50 % retained 50 % retained
Degradation Breaking Strength at 500 h at 500 h
TABLE 2 Geotextile Properties
Minimum Value Minimum Value
Property Test Method Class A Class B
Geocomposite Geocomposite
Grab Strength Test Method D4632/D4632M 700 N 500 N
Elongation Test Method D4632/D4632M >50 % >50 %
Seam Strength Test Method D4632/D4632M 630 N 450 N
Puncture Strength Test Method D6241 1375 N 990 N
Trapezoidal Tear Test Method D4533/D4533M 250 N 180 N
–1 –1
Permittivity Test Methods D4491/D4491M 0.5 s 0.5 s
AOS Test Method D4751 0.25 mm 0.25 mm
(max. avg. roll value) (max. avg. roll value)
Ultraviolet Test Method D4355/D4355M 50 % retained 50 % retained
Degradation Breaking Strength at 500 h at 500 h
NOTE 1—These properties are for the geotextile for the finished product as applied to the core, including the effects of any resin bonding or calendaring
done to the material. If circular knit geotextile is used, it shall meet the requirements of Specification D6707. Geotextile properties for Class A cores are
listed as Class 2 in AASHTO M288; and for Class B cores are Class 3 as in AASHTO M288.
TABLE 3 Geocomposite Properties
NOTE 1—These properties are for the geotextile for the finished product as applied to the core, including the effects of any resin bonding or calendaring
done to the material. If circular-knit geotextile is used, it shall meet the requirements of Specification D6707/D6707M. Geotextile properties for Class
A cores are listed as Class 2 in AASHTO M288; and for Class B cores are Class 3 as in AASHTO M288.
Property Test Method Minimum Value Class A Minimum Value Class B
3 3
Transmissivity (per 300 mm (12 in.) of width) Test Method D4716 $ 0.001 m /s ($ 0.035 CFS) $ 0.001 m /s ($ 0.035 CFS)
3 3
Transmissivity (per 300 mm (12 in.) of width) Test Method D4716/D4716M $0.001 m /s ($ 0.035 CFS) $0.001 m /s ($0.035 CFS)
Vertical Compression Test Method D6244 # 5 % loss of cross sectional area # 5 % loss of cross sectional area
at 4450 N (1000 lbf) at 4450 N (1000 lbf)
Vertical Compression Test Method D6244 #5 % loss of cross sectional area #5 % loss of cross sectional area
at 4450 N (1000 lbf) at 4450 N (1000 lbf)
3 3 3 3
Flow Capacity (Vertical position) University of Kentucky >0.001 m /s (0.03 ft /s) >0.002 m /s (0.067 ft /s)
(per 300 mm (12 in.) of width) In-Plane Flow Test
6.2 Manufacture and Assembly—The geocomposite shall be assembled from the permitted core structures and the geotextile.
6.2.1 Core—The core structure shall be manufactured by continuous extrusion and forming and cut to size.
6.2.2 Fittings—The core fittings shall be blow molded, injection molded, rotational molded, thermoformed, or fabricated
...